Bio:
The League of Assassins was founded by Ra's al Ghul (exactly when is unknown) to be "the fang that protects the head" (Batgirl #67, 2005). Members of the League demonstrated willingness to die at a word from Ra's. They have included some of the most dangerous assassins in the world including Lady Shiva, David Cain, and master archer Merlyn. For much of its current history any member to fail in an assassination was in turn targeted by the League (and indeed, one of its best-known members, the master-archer Merlyn was eventually forced to flee from the League, fearing for his life, having failed to assassinate Batman). In more recent years this policy has apparently relaxed somewhat.

#1 - 'The Grail, Part One of Four'#2 - 'The Grail, Part Two of Four'#3 - 'The Grail, Part Three of Four'#4 - 'The Grail, Conclusion'#5 - 'Council of Spiders, Part One of Four'#6 - 'Council of Spiders, Part Two of Four'#7 - 'Council of Spiders, Part Three of Four'#8 - 'Council of Spiders, Part Four of Four'#9 - 'Collision, Part One of Four'#10 - 'Collision, Part Two of Four'#11 - 'Collision, Part Three of Four'#12 - 'Collision, The Conclusion'#22 - 'Judgement on Gotham Part Two: A Soul In Silence'